Practice Questions

TLS Online TPP Program

#Question id: 4959

If a fossil is encased in a stratum of sedimentary rock without any strata of igneous rock (e.g., lava, volcanic ash) nearby, then it should be

#Unit 11. Evolution and Behavior

easy to determine the absolute age of the fossil, because the radioisotopes in the sediments will not have been ʺresetʺ by the heat of the igneous rocks.
easy to determine the absolute age of the fossil, because the igneous rocks will not have physically obstructed the deposition of sediment of a single age next to the fossil.
difficult to determine the absolute age of the fossil, because the ʺmarker fossilsʺ common to igneous rock will be absent.
difficult to determine the absolute age of the fossil, because radiometric dating of sedimentary rock is less accurate than that of igneous rock.

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TLS Online TPP Program

#Question id: 3499

#Unit 11. Evolution and Behavior

In some jacana species, males take care of the eggs and young, and females compete among themselves for territories that contain one to several males. Female jacanas are significantly larger than males. Which of these statements would you predict to be true of this bird species?

a. Male jacana fitness is primarily limited by ability to take care of eggs and raise young.

b. Female jacana fitness is limited by the number of males in her territory with which a female mates.

c. Variation in reproductive success should be greater in male jacanas than in females.

d. Variation in reproductive success should be greater in female jacanas than in males.

e. Males and females have equal variation in reproductive success.

TLS Online TPP Program

#Question id: 3498

#Unit 11. Evolution and Behavior

Assuming 5 offspring of each female, A Female lion with a well-nourished cub gains inclusive fitness by nursing a starving cub of a full sister by 5% loss to herself. What would be value of be benefit in percent (all offspring of recipient female die in case of no nursing)

TLS Online TPP Program

#Question id: 3497

#Unit 11. Evolution and Behavior

Which of the following is correct statement?

a. Sexual selection should operate more powerfully in polygamous than in monogamous species

b. Polygynous species should have stronger sexual dimorphism than in monogamous species

c. Male competition or male choice favors adaptations to polygynous mating in species

TLS Online TPP Program

#Question id: 3496

#Unit 11. Evolution and Behavior

Which of following favor adaptations for polygynous mating in species?

a. Male competition